scinote-web/app/controllers/wopi_controller.rb

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class WopiController < ActionController::Base
include WopiUtil
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include PermissionHelper
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before_action :load_vars, :authenticate_user_from_token!
before_action :verify_proof!
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# Only used for checkfileinfo
def file_get_endpoint
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check_file_info
end
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def file_contents_get_endpoint
# get_file
response.headers['X-WOPI-ItemVersion'] = @asset.version
response.body = Paperclip.io_adapters.for(@asset.file).read
send_data response.body, disposition: 'inline', content_type: 'text/plain'
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end
def post_file_endpoint
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override = request.headers['X-WOPI-Override']
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case override
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when 'GET_LOCK'
get_lock
when 'PUT_RELATIVE'
put_relative
when 'LOCK'
old_lock = request.headers['X-WOPI-OldLock']
if old_lock.nil?
lock
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else
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unlock_and_relock
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end
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when 'UNLOCK'
unlock
when 'REFRESH_LOCK'
refresh_lock
when 'GET_SHARE_URL'
render nothing: :true, status: 501 and return
else
render nothing: :true, status: 404 and return
end
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end
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# Only used for putfile
def file_contents_post_endpoint
logger.warn 'WOPI: post_file_contents called'
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put_file
end
def check_file_info
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asset_owner_id = @asset.id.to_s
asset_owner_id = @asset.created_by_id.to_s if @asset.created_by_id
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msg = {
BaseFileName: @asset.file_file_name,
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OwnerId: asset_owner_id,
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Size: @asset.file_file_size,
UserId: @user.id.to_s,
Version: @asset.version.to_s,
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SupportsExtendedLockLength: true,
SupportsGetLock: true,
SupportsLocks: true,
SupportsUpdate: true,
# Setting all users to business until we figure out
# which should NOT be business
LicenseCheckForEditIsEnabled: true,
UserFriendlyName: @user.name,
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UserCanWrite: @can_write,
UserCanNotWriteRelative: true,
CloseUrl: @close_url,
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DownloadUrl: url_for(controller: 'assets', action: 'download',
id: @asset.id),
HostEditUrl: url_for(controller: 'assets', action: 'edit',
id: @asset.id),
HostViewUrl: url_for(controller: 'assets', action: 'view',
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id: @asset.id),
BreadcrumbBrandName: @breadcrumb_brand_name,
BreadcrumbBrandUrl: @breadcrumb_brand_url,
BreadcrumbFolderName: @breadcrumb_folder_name,
BreadcrumbFolderUrl: @breadcrumb_folder_url
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}
response.headers['X-WOPI-HostEndpoint'] = ENV['WOPI_ENDPOINT_URL']
response.headers['X-WOPI-MachineName'] = ENV['WOPI_ENDPOINT_URL']
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response.headers['X-WOPI-ServerVersion'] = Constants::APP_VERSION
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render json: msg and return
end
def put_relative
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render nothing: :true, status: 501 and return
end
def lock
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lock = request.headers['X-WOPI-Lock']
logger.warn 'WOPI: lock; ' + lock.to_s
render nothing: :true, status: 404 and return if lock.nil? || lock.blank?
@asset.with_lock do
if @asset.locked?
if @asset.lock == lock
@asset.refresh_lock
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response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
else
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response.headers['X-WOPI-Lock'] = @asset.lock
render nothing: :true, status: 409 and return
end
else
@asset.lock_asset(lock)
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response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
end
end
end
def unlock_and_relock
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logger.warn 'lock and relock'
lock = request.headers['X-WOPI-Lock']
old_lock = request.headers['X-WOPI-OldLock']
if lock.nil? || lock.blank? || old_lock.blank?
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render nothing: :true, status: 400 and return
end
@asset.with_lock do
if @asset.locked?
if @asset.lock == old_lock
@asset.unlock
@asset.lock_asset(lock)
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response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
else
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response.headers['X-WOPI-Lock'] = @asset.lock
render nothing: :true, status: 409 and return
end
else
response.headers['X-WOPI-Lock'] = ' '
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render nothing: :true, status: 409 and return
end
end
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end
def unlock
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lock = request.headers['X-WOPI-Lock']
render nothing: :true, status: 400 and return if lock.nil? || lock.blank?
@asset.with_lock do
if @asset.locked?
logger.warn "WOPI: current asset lock: #{@asset.lock},
unlocking lock #{lock}"
if @asset.lock == lock
@asset.unlock
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@asset.post_process_file # Space is already taken in put_file
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create_wopi_file_activity(@user, false)
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response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
else
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response.headers['X-WOPI-Lock'] = @asset.lock
render nothing: :true, status: 409 and return
end
else
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logger.warn 'WOPI: tried to unlock non-locked file'
response.headers['X-WOPI-Lock'] = ' '
render nothing: :true, status: 409 and return
end
end
end
def refresh_lock
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lock = request.headers['X-WOPI-Lock']
render nothing: :true, status: 400 and return if lock.nil? || lock.blank?
@asset.with_lock do
if @asset.locked?
if @asset.lock == lock
@asset.refresh_lock
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response.headers['X-WOPI-ItemVersion'] = @asset.version
response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
else
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response.headers['X-WOPI-Lock'] = @asset.lock
render nothing: :true, status: 409 and return
end
else
response.headers['X-WOPI-Lock'] = ' '
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render nothing: :true, status: 409 and return
end
end
end
def get_lock
@asset.with_lock do
if @asset.locked?
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response.headers['X-WOPI-Lock'] = @asset.lock
else
response.headers['X-WOPI-Lock'] = ' '
end
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render nothing: :true, status: 200 and return
end
end
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def put_file
@asset.with_lock do
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lock = request.headers['X-WOPI-Lock']
if @asset.locked?
if @asset.lock == lock
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logger.warn 'WOPI: replacing file'
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@team.release_space(@asset.estimated_size)
@asset.update_contents(request.body)
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@asset.last_modified_by = @user
@asset.save
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@team.take_space(@asset.estimated_size)
@team.save
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@protocol.update(updated_at: Time.now) if @protocol
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response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
else
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logger.warn 'WOPI: wrong lock used to try and modify file'
response.headers['X-WOPI-Lock'] = @asset.lock
render nothing: :true, status: 409 and return
end
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elsif !@asset.file_file_size.nil? && @asset.file_file_size.zero?
logger.warn 'WOPI: initializing empty file'
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@team.release_space(@asset.estimated_size)
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@asset.update_contents(request.body)
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@asset.last_modified_by = @user
@asset.save
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@team.save
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response.headers['X-WOPI-ItemVersion'] = @asset.version
render nothing: :true, status: 200 and return
else
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logger.warn 'WOPI: trying to modify unlocked file'
response.headers['X-WOPI-Lock'] = ' '
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render nothing: :true, status: 409 and return
end
end
end
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def load_vars
@asset = Asset.find_by_id(params[:id])
if @asset.nil?
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render nothing: :true, status: 404 and return
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else
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logger.warn 'Found asset: ' + @asset.id.to_s
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step_assoc = @asset.step
result_assoc = @asset.result
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@assoc = step_assoc unless step_assoc.nil?
@assoc = result_assoc unless result_assoc.nil?
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if @assoc.class == Step
@protocol = @asset.step.protocol
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@team = @protocol.team
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else
@my_module = @assoc.my_module
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@team = @my_module.experiment.project.team
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end
end
end
private
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def authenticate_user_from_token!
wopi_token = params[:access_token]
if wopi_token.nil?
logger.warn 'WOPI: nil wopi token'
render nothing: :true, status: 401 and return
end
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@user = User.find_by_valid_wopi_token(wopi_token)
if @user.nil?
logger.warn 'WOPI: no user with this token found'
render nothing: :true, status: 401 and return
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end
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logger.warn 'WOPI: user found by token ' + wopi_token +
' ID: ' + @user.id.to_s
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# This is what we get for settings permission methods with
# current_user
@current_user = @user
if @assoc.class == Step
@can_read = can_view_steps_in_protocol(@protocol)
@can_write = can_edit_step_in_protocol(@protocol)
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if @protocol.in_module?
@close_url = protocols_my_module_url(@protocol.my_module,
only_path: false,
host: ENV['WOPI_BREADCRUMBS_HOST'])
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project = @protocol.my_module.experiment.project
@breadcrumb_brand_name = project.name
@breadcrumb_brand_url = project_url(project,
only_path: false,
host: ENV['WOPI_BREADCRUMBS_HOST'])
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@breadcrumb_folder_name = @protocol.my_module.name
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else
@close_url = protocols_url(only_path: false,
host: ENV['WOPI_BREADCRUMBS_HOST'])
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@breadcrump_brand_name = 'Projects'
@breadcrumb_brand_url = root_url(only_path: false,
host: ENV['WOPI_BREADCRUMBS_HOST'])
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@breadcrumb_folder_name = 'Protocol managament'
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end
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@breadcrumb_folder_url = @close_url
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else
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@can_read = can_view_or_download_result_assets(@my_module)
@can_write = can_edit_result_asset_in_module(@my_module)
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@close_url = results_my_module_url(@my_module,
only_path: false,
host: ENV['WOPI_BREADCRUMBS_HOST'])
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@breadcrumb_brand_name = @my_module.experiment.project.name
@breadcrumb_brand_url = project_url(@my_module.experiment.project,
only_path: false,
host: ENV['WOPI_BREADCRUMBS_HOST'])
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@breadcrumb_folder_name = @my_module.name
@breadcrumb_folder_url = @close_url
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end
render nothing: :true, status: 404 and return unless @can_read
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end
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def verify_proof!
token = params[:access_token].encode('utf-8')
timestamp = request.headers['X-WOPI-TimeStamp'].to_i
signed_proof = request.headers['X-WOPI-Proof']
signed_proof_old = request.headers['X-WOPI-ProofOld']
url = request.original_url.upcase.encode('utf-8')
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if convert_to_unix_timestamp(timestamp) + 20.minutes >= Time.now
if current_wopi_discovery.verify_proof(token, timestamp, signed_proof,
signed_proof_old, url)
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logger.warn 'WOPI: proof verification: successful'
else
logger.warn 'WOPI: proof verification: not verified'
render nothing: :true, status: 500 and return
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end
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else
logger.warn 'WOPI: proof verification: timestamp too old; ' +
timestamp.to_s
render nothing: :true, status: 500 and return
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end
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rescue => e
logger.warn 'WOPI: proof verification: failed; ' + e.message
render nothing: :true, status: 500 and return
end
end